64GB Micro SD Card 2 Pack Ultra Micro SDXC Memory U1 Card Class 10 Micro SD Cards 64GB High Speed TF Card R Flash, C10, U1, 64 GB (2 Pack)

This pack of 2 x 64GB Micro SD cards were ordered for use in my WiFi CCTV cameras and video door bells, to keep recording NON STOP in a loop. When I say "loop", this will record for a few days, and then the old recordings will "drop off" to allow space for the latest recordings, so it is always possible to keep fairly up to date. They are meant to support up to 80MB/s, and they are also available, at the time of writing in 16GB, 32GB, 128GB, 256GB, and my 64GB versions were chosen not just because they were on a good price but also because there was an 'AMAZONS CHOICE' logo next to the listing, and that alone has never let me down, well sadly until now. Both cards refused to format, please see included image, they refused to format even on my laptop, which can format just about anything, and would not format in any item that uses a micro SD card, and yet, when I tried other makes, they formatted perfect. Please avoid at all costs. I have had thesea good week now, and have tried everything, so I have given these micro SD cards a chance, as they say. I am returning them to the makers for a refund, as this truly is unacceptable, especially when other makes of micro SD cards work without question.

Seems to be a common theme that they're branded as 64GB however they're only 4GB. I had 2 in seperate CCTV cameras and they both stopped working after around 4.7GB worth of footage. Please do not buy these, just buy high endurance chips that are branded for cameras. I don't why these have so many good reviews and are still on here. Terrible. Unfortunetly I am passed the return window. Stay clear!

I got these to go in my cctv camera and so far they work fine. Good price too. ** UPDATE ** they have both stopped working. Won't even recognise when I put them I'm my laptop. Not even 3 months. Avoid!!!!!!

I bought the twin pack as have 4 kindle tablet so needed to upgrade the memory. In the beginning it was awesome considering the price but just right after 30 days when the return policy close it broke so the procedure just became so crap that I don't even bother to go trough of it I'm sad as now need to replace it. So don't expect much and don't keep important files only on it

Bought a two pack to use as storage expansion for two Amazon Fire tablets. Both installations worked fine. One card failed after the first day. Verified on both tablets. I've use a lot of memory cards over a lot of years and I believe this is the first one I had fail. Very poor experience. I'll go with a name brand anymore!

Well I never seen an SD Card catch on fire. This one did. The manufacturer stated on their web site only 30 days warranty. When the listing said 2 years. Amazon have offered a refund once I send it back, but It will cost me more to go to the post office to post it than I get in refund, so will have to wait until i’m passing. So the lesson is. These are cheap for a reason!!!!!!! The manufactures don’t care about warrantee ( so avoid) and if you use them in a device, be prepared for the device to potentially catch fire/issue. These cards where bought as a pair. The other was in a kids toy. Glad it wasn’t that one that caught on fire. !!!!!!

All was fine for about 2 weeks, then whilst viewing a video for my daughter's GCSE that we were about to transfer to USB for submission - my mobile displayed the message 'video not supported'. From that moment all 60gb of our photos and videos disappeared forever. The microSD is no longer recognised by phones/laptops and we've had IT technicians on the case with no joy. Extremely sad to have lost so many of our memories and evidence for exams...

I've used both SD cards in dash cams one seems to be working without and issue the other I got an error message that says "SD card error" after the second time using it. I reformated the card and it worked but then I got the same error on the next use. It's not the dash cam because it works with other SD cards.

Conforme à mon attente

Abbastanza veloce in lettura quasi 85/90MB/s, ma in scrittura è una tartaruga e non arriva a 9MB/s. C'è di meglio!

El producto calidad

Ho acquistato la KOOTION Scheda di Memoria 32GB Classe 10 MicroSDHC per il mio telefono e sono rimasto davvero soddisfatto. Ecco perché la consiglio vivamente: Prestazioni Eccellenti La velocità di lettura fino a 100 MB/s è incredibile. Ho notato una differenza significativa rispetto alle mie vecchie schede di memoria, soprattutto quando carico video in alta risoluzione e giochi. La registrazione video 4K è fluida e senza interruzioni. Affidabilità e Durata La scheda è resistente all'acqua, agli urti e alle alte/basse temperature, il che è perfetto per il mio stile di vita attivo. Ho già utilizzato la scheda in diverse condizioni e non ho mai riscontrato problemi di malfunzionamento. Ampia Compatibilità Questa scheda è perfetta per vari dispositivi, tra cui telefoni, videocamere, tablet, GoPro e Switch. È stata facile da configurare e funziona senza intoppi con tutti i miei dispositivi. Prezzo e Qualità Considerando le prestazioni e la qualità, il prezzo è davvero competitivo. È un ottimo investimento per chi cerca una scheda di memoria affidabile e veloce senza spendere troppo. Conclusione In sintesi, la KOOTION Scheda di Memoria 32GB Classe 10 MicroSDHC è una scelta eccellente per chi cerca prestazioni elevate, affidabilità e compatibilità. Se hai bisogno di una scheda di memoria per vari dispositivi, questa è sicuramente da considerare.

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